------------[ cut here ]------------
WARNING: CPU: 0 PID: 26216 at mm/maccess.c:226 copy_from_user_nofault+0x160/0x1c0 mm/maccess.c:226
Modules linked in:
CPU: 0 PID: 26216 Comm: syz.1.16850 Not tainted syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/15/2026
RIP: 0010:copy_from_user_nofault+0x160/0x1c0 mm/maccess.c:226
Code: 24 45 31 f6 31 ff 89 de e8 7d 7a d8 ff 85 db 48 c7 c0 f2 ff ff ff 49 0f 44 c6 5b 41 5c 41 5d 41 5e 41 5f 5d c3 e8 00 77 d8 ff <0f> 0b e9 1c ff ff ff 44 89 e1 80 e1 07 80 c1 03 38 c1 0f 8c ea fe
RSP: 0018:ffffc90000006ec8 EFLAGS: 00010246
RAX: ffffffff81a0b690 RBX: 0000000000000000 RCX: ffff88801ebd9dc0
RDX: 0000000000000100 RSI: 0000000000000000 RDI: 0000000000000000
RBP: 0000000000000000 R08: ffffc900000072f7 R09: ffffc900000072c4
R10: dffffc0000000000 R11: fffff52000000e5f R12: ffff88801ebdb568
R13: ffffc900012e6030 R14: ffffc90000006f28 R15: 0000000000000000
FS: 00007f6a95ed56c0(0000) GS:ffff8880b8e00000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000000000004 CR3: 0000000065ffd000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000600
Call Trace:
bpf_probe_read_user_common kernel/trace/bpf_trace.c:157 [inline]
____bpf_probe_read_user kernel/trace/bpf_trace.c:166 [inline]
bpf_probe_read_user+0x26/0x70 kernel/trace/bpf_trace.c:163
bpf_prog_f2594087b0f175cc+0x32/0x268
bpf_dispatcher_nop_func include/linux/bpf.h:890 [inline]
__bpf_prog_run include/linux/filter.h:628 [inline]
bpf_prog_run include/linux/filter.h:635 [inline]
bpf_prog_run_pin_on_cpu include/linux/filter.h:652 [inline]
bpf_flow_dissect+0x128/0x400 net/core/flow_dissector.c:896
__skb_flow_dissect+0x7dc/0x61d0 net/core/flow_dissector.c:1032
__skb_get_hash_net+0xda/0x4d0 net/core/flow_dissector.c:1713
skb_get_hash include/linux/skbuff.h:1440 [inline]
skb_tx_hash net/core/dev.c:3256 [inline]
netdev_pick_tx+0x337/0xad0 net/core/dev.c:4154
netdev_core_pick_tx+0x141/0x300 net/core/dev.c:4187
__dev_queue_xmit+0x797/0x2e50 net/core/dev.c:4262
hsr_xmit net/hsr/hsr_forward.c:340 [inline]
hsr_forward_do net/hsr/hsr_forward.c:431 [inline]
hsr_forward_skb+0xf82/0x16b0 net/hsr/hsr_forward.c:584
send_hsr_supervision_frame+0x5f7/0xb90 net/hsr/hsr_device.c:348
hsr_announce+0x168/0x310 net/hsr/hsr_device.c:404
call_timer_fn+0x17b/0x540 kernel/time/timer.c:1648
expire_timers kernel/time/timer.c:1699 [inline]
__run_timers+0x56c/0x810 kernel/time/timer.c:1970
run_timer_softirq+0x63/0xf0 kernel/time/timer.c:1983
handle_softirqs+0x336/0x830 kernel/softirq.c:576
__do_softirq kernel/softirq.c:610 [inline]
invoke_softirq kernel/softirq.c:450 [inline]
__irq_exit_rcu+0x13b/0x230 kernel/softirq.c:659
irq_exit_rcu+0x5/0x20 kernel/softirq.c:671
instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1108 [inline]
sysvec_apic_timer_interrupt+0xa0/0xc0 arch/x86/kernel/apic/apic.c:1108
asm_sysvec_apic_timer_interrupt+0x16/0x20 arch/x86/include/asm/idtentry.h:676
RIP: 0010:kasan_quarantine_put+0x84/0x210 mm/kasan/quarantine.c:234
Code: e8 11 dc c0 ff 48 c7 04 24 00 00 00 00 9c 8f 04 24 f7 04 24 00 02 00 00 0f 85 83 00 00 00 41 f7 c7 00 02 00 00 74 01 fb 31 c0 <48> 83 c4 08 5b 41 5c 41 5d 41 5e 41 5f c3 48 8d 80 40 62 03 00 45
RSP: 0018:ffffc90002fef7d0 EFLAGS: 00000206
RAX: c3d7b5c24e9d7301 RBX: ffff888024358ea0 RCX: c3d7b5c24e9d7300
RDX: dffffc0000000000 RSI: ffffffff8a2b2b60 RDI: ffffffff8a7a5100
RBP: ffffc90002fef868 R08: ffffffff910470c7 R09: 1ffffffff2208e18
R10: dffffc0000000000 R11: fffffbfff2208e19 R12: ffff88801784fa00
R13: ffff888024358ea0 R14: 00000000000b54f8 R15: 0000000000000286
kasan_slab_free include/linux/kasan.h:230 [inline]
slab_free_hook mm/slub.c:1710 [inline]
slab_free_freelist_hook+0xec/0x170 mm/slub.c:1736
slab_free mm/slub.c:3504 [inline]
kmem_cache_free+0x8f/0x210 mm/slub.c:3520
adjust_va_to_fit_type mm/vmalloc.c:1376 [inline]
__alloc_vmap_area mm/vmalloc.c:1492 [inline]
alloc_vmap_area+0x157f/0x1b30 mm/vmalloc.c:1583
__get_vm_area_node+0x14f/0x2d0 mm/vmalloc.c:2463
__vmalloc_node_range+0xef/0x8b0 mm/vmalloc.c:3060
__vmalloc_node mm/vmalloc.c:3120 [inline]
__vmalloc+0x76/0x80 mm/vmalloc.c:3134
bpf_prog_alloc_no_stats+0x36/0x2c0 kernel/bpf/core.c:90
bpf_prog_alloc+0x1a/0x1e0 kernel/bpf/core.c:124
bpf_prog_load+0x7d1/0x14e0 kernel/bpf/syscall.c:2301
__sys_bpf+0x532/0x6f0 kernel/bpf/syscall.c:4657
__do_sys_bpf kernel/bpf/syscall.c:4761 [inline]
__se_sys_bpf kernel/bpf/syscall.c:4759 [inline]
__x64_sys_bpf+0x78/0x90 kernel/bpf/syscall.c:4759
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x4c/0xa0 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x66/0xd0
RIP: 0033:0x7f6a97c7eb19
Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f6a95ed5028 EFLAGS: 00000246 ORIG_RAX: 0000000000000141
RAX: ffffffffffffffda RBX: 00007f6a97f04fa0 RCX: 00007f6a97c7eb19
RDX: 0000000000000094 RSI: 0000200000000540 RDI: 0000000000000005
RBP: 00007f6a97d16b70 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007f6a97f05038 R14: 00007f6a97f04fa0 R15: 00007ffca0f31f48
----------------
Code disassembly (best guess):
0: e8 11 dc c0 ff call 0xffc0dc16
5: 48 c7 04 24 00 00 00 movq $0x0,(%rsp)
c: 00
d: 9c pushf
e: 8f 04 24 pop (%rsp)
11: f7 04 24 00 02 00 00 testl $0x200,(%rsp)
18: 0f 85 83 00 00 00 jne 0xa1
1e: 41 f7 c7 00 02 00 00 test $0x200,%r15d
25: 74 01 je 0x28
27: fb sti
28: 31 c0 xor %eax,%eax
* 2a: 48 83 c4 08 add $0x8,%rsp <-- trapping instruction
2e: 5b pop %rbx
2f: 41 5c pop %r12
31: 41 5d pop %r13
33: 41 5e pop %r14
35: 41 5f pop %r15
37: c3 ret
38: 48 8d 80 40 62 03 00 lea 0x36240(%rax),%rax
3f: 45 rex.RB